We have a spreadsheet that automatically feeds a few items of data into
Excel every 5 seconds. After several minutes of the intermittent data
populations, there is an issue where the mouse position on the screen
doesn't match the actual cursor position (ie you click the mouse and a cell
several positions to the left and down several rows will be highlight).
This seems to occur primarily when you try to click during one of the brief
"every 5 second" data populations. Any ideas?

Also, whenever you highlight cells, choose "Copy" and then data fill comes
in before you can select "Paste", the paste buffer is erased and you have to
start again.

Would appreciate any suggestions.

Thanks!
Van